Cisco IP Phone 7821 (CP-7821-K9) — Enterprise-Grade 2-Line VoIP Phone
Save up to 70% over new with this professionally refurbished Cisco 7821 IP Phone. Ideal for offices, call centers, and enterprise UC deployments, the CP-7821-K9 delivers crystal-clear wideband audio, a high-resolution backlit display, and secure SIP communications — all backed by Reef Telecom's industry-leading 10-year warranty.
Key Specifications
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2 Programmable Line/Feature Keys — supports directory numbers or speed dial
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3.5" Greyscale Display — 396 x 162 pixels with white backlight
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Wideband Audio (G.722) — superior voice quality via handset, speakerphone, or headset
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Dual 10/100 Ethernet Ports — integrated Ethernet switch for single-cable desktop deployment
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PoE Class 1 (IEEE 802.3af) — power and data over one cable; Energy Star certified
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SIP Protocol Support — with SRTP encryption and TLS signaling security
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Full-Duplex Speakerphone — hands-free conferencing built in
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RJ9 Headset Port + EHS Support — flexible headset connectivity options
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Fixed Function Keys — one-touch messaging, directory, hold, transfer, and conference
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Wall Mountable — includes dual-position foot stand for desk or wall use
Compatibility
- Cisco Unified Communications Manager (CUCM) 8.5.1 and later
- Cisco Business Edition 6000 — 8.6.2 and later
- Cisco Hosted Collaboration Solution (HCS)
- Cisco Unified Survivable Remote Site Telephony (SRST) 8.x+
- Third-party SIP call control platforms
- Requires Basic User Connect License (UCL)
Why Buy from Reef Telecom?
Every refurbished Cisco 7821 is thoroughly inspected, tested, and restored to full working condition. Your purchase includes a 10-year warranty and free shipping on orders over $300. Reduce e-waste and IT costs without sacrificing quality — choose Reef Telecom for sustainable, enterprise-ready telecom equipment.
